president obama will look to massachusetts senator john kerry to stand in for romney. behind in recent polls, some campaign watchers say romney has more riding on the debates, as well as more to gain, than the president. >> the challenger has the opportunity to establish he is competent to stand up and hold his own against the president of the united states. a challenger who accomplishes that in effect wins the first debate. >> reporter: wednesday's debate gives both candidates a chance to explain their plans for health care and the economy. drew levinson, cbs news. >> the first of the three presidential debates is wednesday at the university of denver. it will focus on domestic policy. the vice-presidential depates will take place on october 11th . >>> lee boy malvoy has talked to the washington post. he was convicted along with john mohammed of the shootings that left ten people fr. prison he tells the newspaper that he remembers each of the sniper shooting details. but it's the linda franklin slaying that haunts him most. he gave the go order and looked across route